✦ LIBER ✦

Process-induced deformation of composite T-stiffener structures

✍ Scribed by Chensong Dong

Publisher: Elsevier Science
Year: 2010
Tongue: English
Weight: 671 KB
Volume: 92
Category: Article
ISSN: 0263-8223
DOI: 10.1016/j.compstruct.2009.11.026

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✦ Synopsis

Composite T-stiffener structures are widely used structural elements in weight sensitive structural, aerospace and marine applications for the purpose of weight reduction. A study on the process-induced deformation of composite T-stiffener structures is presented in this paper. The deformation was calculated numerically by Finite Element Analysis (FEA), and the resulting displacements show that the deformation can be represented by a single angular displacement: the spring-in of the skin. A parametric study was conducted by Design of Experiments (DOE) and FEA to investigate the influence of design parameters on the spring-in of the skin. It is shown that the spring-in of the skin increases with the radius and the bonding length, and decreases with the fiber volume fraction.

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